OS-level Power Management for Mobile Devices
Sung Woo Chung (http://smrl.korea.ac.kr/professor1.htm)
Division of Computer and Communication Engineering
Korea University
Date and Location: Thursday, October
3rd, 2013, 11:00am - 12:00pm @ Stuart Building, Room 113.
Abstract
There have been numerous OS-level power management techniques, but
most of them are not so realistic unfortunately (eg. too complicated
to adopt or potential gain is marginal). On the other hand, power
management techniques in off-the-shelf mobile devices are very basic
such as changing frequency and voltage by looking at core frequency.
In this talk, I will introduce smart OS-level power management
techniques, which can be applicable to real mobile devices. My talk
is composed of five parts as follows: 1) user-aware power management
for display, 2) profile based DVFS for APs, 3) cost table based DVFS
for APs, 4) thermal-aware DVFS for APs, and 5) battery-aware DVFS
for APs. (All the results shown in this talk are based on real
measurement (not simulation))
Biography
Sung Woo Chung is an Associate Professor of Korea University. His
research interests include architectural-/system-level power/thermal
management. He is an Associate Editor of IEEE Transactions on
Computers and he also serves as processor architecture track program
co-chair of ICCD 2013. He received his B.S. degree in Computer
Engineering, his Ph.D. degree in Electrical and Computer Engineering
from Seoul National University, Seoul, Korea in 1996 and 2003,
respectively. He worked as an academic visitor for IBM T.J. Watson
Research Center, Yorktown Heights, NY, in 2002. From 2003 to 2005,
He worked for Samsung Electronics as a senior engineer. In 2005, He
worked as a research scientist in University of Virginia,
Charlottesville. In 2009, He spent his sabbatical at Northwestern
University.